Add NattyOrNot CopyStudio .NET project

.gitignore

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+bin/
+obj/
+*.user
+*.vs/
+.vscode/
+secrets.json
+*.p12
+*.pfx
+*.key
+*.pem

NattyOrNot.CopyStudio.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="AWSSDK.BedrockRuntime" Version="3.7.1.0" />
+    <PackageReference Include="AWSSDK.Polly" Version="3.7.1.0" />
+    <PackageReference Include="AWSSDK.S3" Version="3.7.1.0" />
+  </ItemGroup>
+</Project>

Program.cs

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+using Amazon;
+using Amazon.BedrockRuntime;
+using Amazon.BedrockRuntime.Model;
+using Amazon.Polly;
+using Amazon.Polly.Model;
+using Amazon.S3;
+using Amazon.S3.Transfer;
+using System.Text;
+using System.Text.Json;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Região (use uma região com Bedrock suportado, ex: us-east-1)
+var region = RegionEndpoint.USEast1;
+
+// Clientes AWS - usam o AWS SDK DefaultCredentialsChain (env vars, perfil, etc.)
+var bedrock = new AmazonBedrockRuntimeClient(region);
+var polly = new AmazonPollyClient(region);
+var s3 = new AmazonS3Client(region); // opcional
+
+var app = builder.Build();
+
+app.MapPost("/api/generate", async (GenerateRequest req) =>
+{
+    if (string.IsNullOrWhiteSpace(req.Topic))
+        return Results.BadRequest(new { error = "Topic is required" });
+
+    var systemNatty = "Você é um editor cuidadoso. Reescreva mantendo o tom natural do usuário, alterando o mínimo necessário. Evite exageros, clichês e jargões de marketing.";
+    var systemFake  = "Você é um copywriter viral. Reescreva com ganchos fortes, CTA, urgência leve e ritmo de redes sociais. Mantenha clareza, mas pode ‘bombar’ o estilo.";
+
+    var toneLower = req.Tone?.Trim()?.ToLower();
+    var system = toneLower == "fake" ? systemFake : systemNatty;
+    var temperature = toneLower == "fake" ? 0.9 : 0.3;
+
+    var userText = $"TEMA/BRIEF:\n{req.Topic}\n\nObservações/estilo extra:\n{req.Style ?? "(nenhuma)"}\n\nSaída em PT-BR. Tamanho: {req.Length ?? "curto"}.";
+
+    var payload = new
+    {
+        anthropic_version = "bedrock-2023-05-31",
+        max_tokens = req.MaxTokens is > 0 and <= 2000 ? req.MaxTokens : 600,
+        temperature,
+        system = new[] { new { type = "text", text = system } },
+        messages = new[]
+        {
+            new {
+                role = "user",
+                content = new[] { new { type = "text", text = userText } }
+            }
+        }
+    };
+
+    var json = JsonSerializer.Serialize(payload);
+    var request = new InvokeModelRequest
+    {
+        ModelId = "anthropic.claude-3-haiku-20240307-v1:0",
+        ContentType = "application/json",
+        Accept = "application/json",
+        Body = new MemoryStream(Encoding.UTF8.GetBytes(json))
+    };
+
+    try
+    {
+        var response = await bedrock.InvokeModelAsync(request);
+        using var reader = new StreamReader(response.Body);
+        var body = await reader.ReadToEndAsync();
+
+        // Tenta desserializar a resposta no formato esperado
+        var data = JsonSerializer.Deserialize<ClaudeResponse?>(body, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+        var text = data?.content?.FirstOrDefault()?.text ?? body ?? "(sem saída)";
+
+        return Results.Ok(new { text });
+    }
+    catch (Exception ex)
+    {
+        return Results.Problem(detail: ex.Message);
+    }
+});
+
+app.MapPost("/api/tts", async (TtsRequest req) =>
+{
+    if (string.IsNullOrWhiteSpace(req.Text))
+        return Results.BadRequest(new { error = "Text is required" });
+
+    try
+    {
+        var synth = await polly.SynthesizeSpeechAsync(new SynthesizeSpeechRequest
+        {
+            Text = req.Text,
+            OutputFormat = OutputFormat.Mp3,
+            VoiceId = VoiceId.Camila, // pt-BR
+            LanguageCode = "pt-BR"
+        });
+
+        // Se quiser salvar no S3: (exemplo comentado)
+        // var transferUtility = new TransferUtility(s3);
+        // await transferUtility.UploadAsync(synth.AudioStream, "my-bucket", "natty.mp3");
+
+        // Retorna o MP3 diretamente
+        return Results.File(synth.AudioStream, "audio/mpeg", "voice.mp3");
+    }
+    catch (Exception ex)
+    {
+        return Results.Problem(detail: ex.Message);
+    }
+});
+
+app.Run();
+
+record GenerateRequest(string Topic, string? Tone, string? Style, string? Length, int MaxTokens = 600);
+record TtsRequest(string Text);
+
+class ClaudeResponse
+{
+    public List<ClaudeContent>? content { get; set; }
+}
+class ClaudeContent
+{
+    public string? type { get; set; }
+    public string? text { get; set; }
+}